Search results for "Energy engineering"
showing 10 items of 1099 documents
Design and simulation of a fast DC recharging station for EV
2017
In this paper a detailed description of the design and simulation of a DC ultra-fast recharging station for Electric Vehicles is carried out. The system consist of a single AC/DC grid connected inverter, a DC-Bus and two DC/DC converter to recharge the batteries of the EVs. The system also has the vehicleto- grid (V2G) capability. The design of the components of the system and the control schemes are explained and a simulation of the system, performed in Matlab/Simulink environment is presented.
Safety studies of a hydrogen refuelling station: Determination of the occurrence frequency of the accidental scenarios
2009
At present, the hydrogen vehicles technology appears to have future Prospective for reduction in greenhouse gas emissions. Nevertheless, the development of such a technology requires appropriate infrastructures for production, Storage and refuelling stages in a refuelling station. This one presents safety challenges due to the hydrogen chemicophysical characteristics. So, to avoid hazards, it is necessary to implement safety practices that, if early adopted in the development of a fuelling station project, can allow very low impact, safety being incorporated in the project itself. However, a drawback is the not sufficient experience and the scarcity of the relevant data collection. To deepe…
Epistemic uncertainty in fault tree analysis approached by the evidence theory
2012
Abstract Process plants may be subjected to dangerous events. Different methodologies are nowadays employed to identify failure events, that can lead to severe accidents, and to assess the relative probability of occurrence. As for rare events reliability data are generally poor, leading to a partial or incomplete knowledge of the process, the classical probabilistic approach can not be successfully used. Such an uncertainty, called epistemic uncertainty, can be treated by means of different methodologies, alternative to the probabilistic one. In this work, the Evidence Theory or Dempster–Shafer theory (DST) is proposed to deal with this kind of uncertainty. In particular, the classical Fau…
Availability of alternative financial resources for SMES as a critical part of the entrepreneurial eco-system: Latvia and Italy
2015
Abstract The importance of non-traditional alternative/innovative financing is gaining recognition in both developed and emerging economies throughout the world (OECD, 2012; EC, 2013; ECB, 2013; ECB, 2014). SME financing in Europe remains primarily bank based, in spite of the many policies proposed to develop alternative financing instruments (e.g. adopting directives on venture capital, improving the transparency and visibility of SMEs on capital markets, etc.) The paper aims at understanding the availability of alternative resources for SMEs by analyzing them rigorously, understanding the obstacles for the development of non-bank finance and developing recommendations to overcome them. Th…
Dysfunctionalities of Faulty Fiscal Inspections for Tax Payers: The Case of Detachment for Work Reasons
2014
Abstract This article does not merely suggest a short comparison between two completely opposed opinions, that of the fiscal inspectors and that of the specialists (accountants, accounting experts, fiscal consultants) that are hired and/or are contract-bounded staff of a commercial entity, regarding the fiscal status of detachment (an aspect that is regulated by internal and international normative acts). It intends, therefore, to be an analysis on the danger of dysfunctionalities of a fiscal inspection on the activity of the tax payers (or simply put the abridged interpretation of the legislation, in order to attract large amounts of money to the state budget by any means), in order to per…
Operational Programmes - Tools to Combat Economic Crisis
2013
Abstract This paper aims to present the state of implementation of operational programs 2007-2013 co-financed with structural instruments, to determine the level of absorption of these funds and the achievement of the strategic objectives set by European and national documents. The purpose of this analysis is to identify weaknesses and strengths that Romania has in this area and how it is likely to increase the success of absorption rate of EU funds. All these aspects are very important, as structural funds are considered an important tool in combating the effects of the financial crisis on the Romanian economy.
Effects of Behavioural Finance on Emerging Capital Markets
2014
Abstract A recent common view of finance experts is that it is becoming increasingly difficult to understand how the economy as a whole works. Although the efficient market theory might be considered an ideal model enabling the interpretation of market behavior, it has begun to lose ground, and the rationality hypothesis failed to explain the excessive volatility of the returns and trading volume recorded on both developed capital markets and emerging ones. Adding the behavioral finance perspective to the equation can help us to understand better how market agents will react. In this article, we investigate the factors that may explain the trading volume evolution on two emerging capital ma…
Effects of Behavioural Factors on Human Financial Decisions
2014
Abstract In this article, we investigate the factors that may explain the trading volume evolution on two emerging capital markets, Romania and Brazil. We analyze the impact of both investors who ground their trading behaviour on rational expectations and investors who show psychological and emotional facets of the human decision, which we call behavioural errors, as independent variables on the trading volume as dependent variable. The results indicate that trading is influenced by the investors’ irrational behaviour. Thus, the rationality hypothesis can be rejected for both capital markets.
Case Study Regarding Solvency Analysis, during 2006-2012, of the Companies having the Business Line in Industry and Construction, Listed and Traded o…
2014
Abstract Beyond the financial performance assessed on the basis of profit and loss account, evaluating a company is made from the perspective of its ability to cope with due debts. A situation that was often encountered by companies listed on the BSE was insolvency, currently affecting six companies, while other have emerged from this process, being traded since November 2013. Considering the companies listed on BSE among the best performing, in this paper, which is part of a larger study, has been analyzed the ability of companies to meet medium and long term maturities, particularly from their own resources, and the way the financial crisis affected it.
Analysing the Financial Soundness of the Commercial Banks in Romania: An Approach based on the Camels Framework
2013
Abstract The Romanian banking system has undergone through tremendous changes in the last decade, its financial soundness and performance being paramount in the achievement of a stable and sustainable economic growth. Thus, the aim of our research is to comparatively analyse the financial soundness of the commercial banks that operate in Romania. In order to achieve this we have used one of the most popular methods for the analysis of the financial soundness of banks, namely the CAMELS framework. The obtained results highlight the strengths and the vulnerabilities of the analysed banks, underlining the need to strengthen the concerns of the decision makers from banks to improve and increase…